CN101333293B - Continuous preparation system for hydroxy terminated polydimethylsiloxane - Google Patents
Continuous preparation system for hydroxy terminated polydimethylsiloxane Download PDFInfo
- Publication number
- CN101333293B CN101333293B CN2008100632932A CN200810063293A CN101333293B CN 101333293 B CN101333293 B CN 101333293B CN 2008100632932 A CN2008100632932 A CN 2008100632932A CN 200810063293 A CN200810063293 A CN 200810063293A CN 101333293 B CN101333293 B CN 101333293B
- Authority
- CN
- China
- Prior art keywords
- horizontal sliding
- temperature
- jar
- chuck
- sliding jar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
Disclosed is a continuous preparation system for preparing hydroxyl polysiloxane, comprising a material trough, a thermotank, catalyzer and a water trough, a pre-reaction jar, a horizontal push jar and a controller. A heating device and a material thermocouple are connected in the thermotank; a viscosity measuring meter is installed on a pipe which is connected to the outlet of the horizontal push jar; the controller comprises an initialization module used for determining the flux of a material screw pump and the flux of a catalyzer screw pump according to process conditions, a startup module used to start up the controller when the temperature measured by the material thermocouple reaches the working temperature, to determine the output frequency of a first transducer and the output frequency of a second transducer according to process conditions and to start a first driving motor and a second driving motor, a transducer frequency regulation module which, based on process characteristic, regulates the output frequency of the first transducer and the output frequency of the second transducer under the condition of keeping the ratio of output frequency of the first transducer to output frequency of the second transducer constant according to viscosity feedback signal. The continuous preparation system is of good control and high production efficiency and the product is of strong stability.
Description
Technical field
The present invention relates to continuous preparation system for hydroxy terminated polydimethylsiloxane.
Background technology
The suitability for industrialized production of hydroxyl polysiloxane can trace back to two step of the base catalysis interrupter method that eighties of last century Dow corning fifties company uses.After this long duration, all continue to use this technology in the world always and produce.
The composition principle of two step interrupter methodes is to be that monomer, highly basic are initiator with the cyclosiloxane, aggregates into the high-molecular weight polysiloxane earlier, further is hydrolyzed into the hydroxyl polysiloxane of suitable molecular weight then.The unstable product quality that this method is prepared, that is: under the situation of same material proportion and technology, the fluctuation range of reaction system transformation efficiency, product viscosity and molecular weight reaches more than 20～50%, when serious even can reach 100%.In addition, also there are problems such as production control difficulty, energy consumption are big in two step interrupter methodes.
The hydroxyl polysiloxane, as the industrial raw material intermediate, the downstream uses producer that the stability of quality index such as its viscosity and molecular weight is had extremely strict requirement, in order to address this problem, hydroxyl polysiloxane manufacturing enterprise often adopts mixes assembly with the different viscosity product, reaching the homogeneity of outward appearance and viscosity, but this treatment process must cause product molecular weight distribution significantly to broaden, thereby has worsened the performance such as physics, machinery of derived product.
Because there is above-mentioned inherent drawback in interrupter method production, external organosilicon major company as the GE company of the U.S., the Dong Li company of Japan etc., has adopted the base catalysis continuous processing to produce the hydroxyl polysiloxane after the eighties in last century, and scale reaches 20000 tons/year.Its process characteristic is: (D4 or DMC) is monomer with general cyclosiloxane, and Tetramethylammonium hydroxide or potassium hydroxide are made catalyzer, and water is end capping agent, and under the reaction conditions of pressurization, the employing static mixer is a reactor, and ring-opening polymerization is produced continuously.If can dispose accurate Controlling System, the molecular weight of this method products obtained therefrom and viscosity is homogeneous very, and molecular weight distribution meets ideal Gaussian distribution state, and excellent performance has satisfied the high-end demand of market to this product.But its technological core is control method especially, abroad holds in close confidence always.
In addition, also develop such as hydroxyl polysiloxane preparation technologies such as polycondensation method, chain extension methods in recent years in succession countries in the world, but these technologies become privileged because of the raw material of severe reaction conditions or employing eventually, fails to realize industrialized production so far.
At present domesticly still prepare the hydroxyl polysiloxane with two step interrupter methodes, other seminars and enterprise still do not have the research of carrying out hydroxyl polysiloxane serialization production yet.
Summary of the invention
The control performance that has hydroxyl polysiloxane preparation system is poor, production efficiency is low, the deficiency of product stability difference, the invention provides the continuous preparation system for hydroxy terminated polydimethylsiloxane that a kind of control performance is good, production efficiency is high, product stability is strong in order to overcome.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of continuous preparation system for hydroxy terminated polydimethylsiloxane, comprise raw material tank, thermostat container, catalyzer and tank, pre-reaction jar and horizontal sliding jar, described raw material tank connects thermostat container, described thermostat container, catalyzer is connected the pre-reaction jar with tank, described pre-reaction jar connects the horizontal sliding jar, described continuous preparation system for hydroxy terminated polydimethylsiloxane also comprises the controller that is used to realize the serialization preparation, between described thermostat container and pre-reaction jar, be provided with the feed screw pump, between described catalyzer and tank and pre-reaction jar, be provided with the catalyzer spiral pump, described feed screw pump connects first drive-motor, described first drive-motor connects first frequency transformer, described catalyzer spiral pump connects second drive-motor, described second drive-motor connects second frequency transformer, and described first frequency transformer is connected controller with second frequency transformer; In described thermostat container, connect heating unit and raw material thermopair, described heating unit all is connected described thermostat container with the raw material thermopair and carries temperature controller, inlet at described horizontal sliding jar is provided with the inlet thermopair, outlet at described horizontal sliding jar is provided with exit thermocouple, and described inlet thermopair is connected controller with exit thermocouple; With pipeline that the outlet of described horizontal sliding jar is connected on viscosity measuring instrument is installed, described viscosity measuring instrument connection controller, described controller comprises: initialization module is used for determining the flow of feed screw pump and the flow of catalyzer spiral pump according to processing condition; Start module, be used for after the temperature of raw material thermopair detection reaches working temperature, the start-up control device is determined the first frequency transformer output frequency and the second frequency transformer output frequency according to processing requirement, starts first drive-motor and second drive-motor; Frequency converter frequency adjusting module: according to the viscosity feedback signal, based on process characteristic, keep adjusting the output frequency of first frequency transformer and second frequency transformer under the output frequency ratio constant condition of first frequency transformer and second frequency transformer, make product viscosity be stabilized in set(ting)value.
As preferred a kind of scheme: described horizontal sliding jar is provided with the hot oiling chuck, deep fat chamber outlet in the described horizontal sliding jar chuck heated oil bath cabinet is connected with end entrance under the hot oiling chuck, the upper end outlet of described hot oiling chuck is communicated with deep fat chamber inlet, be provided with oil pump between the end entrance under described deep fat chamber and the hot oiling chuck, connect heating unit in the described horizontal sliding jar chuck heated oil bath cabinet, refrigerating unit and thermopair, described heating unit, refrigerating unit all is connected described controller with the raw material thermopair, shown in the part of refrigerating unit in described horizontal sliding jar chuck heated oil bath cabinet be multi-layer helical shape sealing spiral coil cooling tube, described refrigerating unit connects horizontal sliding jar chuck cooling water tank, on the water pipe between described horizontal sliding jar chuck cooling water tank and the refrigerating unit, be provided with water pump, in described initialization module, determine the temperature out of horizontal sliding jar, temperature in, the working temperature of described horizontal sliding jar chuck heated oil bath cabinet and qualification top temperature and described horizontal sliding jar chuck cooling water tank alarm temperature, in the described startup module, start oil pump; Described controller also comprises:
Horizontal sliding jar temperature regulation module is used for turn-offing oil pump when the temperature of exit thermocouple detection reaches temperature out; Horizontal sliding jar chuck heated oil bath cabinet temperature regulation module is used for when described horizontal sliding jar chuck heated oil bath cabinet temperature does not reach working temperature, by controller control AC voltage adjusting module output continually varying voltage signal control heating unit;
Horizontal sliding jar chuck cooling water tank temperature regulation module is used for starting refrigerating unit when the temperature that detects horizontal sliding jar chuck heated oil bath cabinet surpasses the qualification top temperature.
Described continuous preparation system for hydroxy terminated polydimethylsiloxane also comprises warning device, described controller also comprises alarm module, be used for when first frequency transformer, second frequency converter failure, working power are unusual, output alarm signal when water temperature surpasses described horizontal sliding jar chuck cooling water tank alarm temperature, described alarm module connects warning device
Technical conceive of the present invention is: the working control task is finished by PLC, hydroxyl polysiloxane continuous production process based on PLC is: preheating reaches assigned temperature to starting monomer (DMC) through thermostat container, control the feed screw pump again and determine flow, another one spiral pump control catalyst, the mixed traffic of water enters a CSTR (i.e. " pre-reaction jar ") together and carries out pre-reaction, fully the reactant behind the mixing enters plug flow static mixer (i.e. " horizontal sliding jar "), flow-pattern with plug flow carries out polyreaction, heats with heat conduction silicone oil (using methyl-silicone oil here) in the horizontal sliding jar chuck.Look into process modeling (form that a large amount of take off data are set up in industrial production) according to actual viscosity measured, determine processing compound, reaction times and polymeric reaction temperature.Yet change temperature and change processing compound suitable serious lag is arranged, for effectively and in real time suppressing fluctuation, can select processing compound and temperature-resistant, change the reaction times, promptly by changing the flow of monomer, catalyzer and water mixed liquid body in proportion, thereby guaranteeing to change the reaction times under the proportioning constant situation, the control constant product quality.
Beneficial effect of the present invention mainly shows: control performance is good, production efficiency is high, product stability is strong.
Description of drawings
Fig. 1 is the process flow diagram of hydroxyl polysiloxane serialization preparation process.
Fig. 2 is the control principle block diagram of continuous preparation system for hydroxy terminated polydimethylsiloxane.
Fig. 3 is the horizontal sliding jar temperature control principle block diagram of continuous preparation system for hydroxy terminated polydimethylsiloxane.
Fig. 4 is the spiral pump speed regulating control functional block diagram of continuous preparation system for hydroxy terminated polydimethylsiloxane.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of continuous preparation system for hydroxy terminated polydimethylsiloxane, comprise raw material tank 1, thermostat container, catalyzer and tank 2, pre-reaction jar 3 and horizontal sliding jar 4, described raw material tank 1 connects thermostat container, described thermostat container, catalyzer is connected pre-reaction jar 3 with tank 2, described pre-reaction jar 3 connects horizontal sliding jar 4, described continuous preparation system for hydroxy terminated polydimethylsiloxane also comprises the controller that is used to realize the serialization preparation, between described thermostat container and pre-reaction jar 3, be provided with feed screw pump P1, between described catalyzer and tank 2 and pre-reaction jar 3, be provided with catalyzer spiral pump P2, described feed screw pump P1 connects first drive-motor, described first drive-motor connects first frequency transformer, described catalyzer spiral pump P2 connects second drive-motor, described second drive-motor connects second frequency transformer, and described first frequency transformer is connected controller with second frequency transformer; In described thermostat container, connect heating unit and raw material thermopair, described heating unit all is connected described thermostat container with the raw material thermopair and carries temperature controller, inlet at described horizontal sliding jar is provided with the inlet thermopair, outlet at described horizontal sliding jar is provided with exit thermocouple, and described inlet thermopair is connected controller with exit thermocouple; With pipeline that the outlet of described horizontal sliding jar is connected on viscosity measuring instrument is installed, described viscosity measuring instrument connection controller, described controller comprises: initialization module is used for determining the flow of feed screw pump, the flow of catalyzer spiral pump according to processing condition; Start module, be used for after the temperature of raw material thermopair detection reaches working temperature, the start-up control device is determined the first frequency transformer output frequency and the second frequency transformer output frequency according to processing requirement, starts first drive-motor and second drive-motor; Frequency converter frequency adjusting module: according to the viscosity feedback signal, based on process characteristic, keep adjusting the output frequency of first frequency transformer and second frequency transformer under the output frequency ratio constant condition of first frequency transformer and second frequency transformer, make product viscosity be stabilized in set(ting)value.
Described horizontal sliding jar is provided with the hot oiling chuck, deep fat chamber outlet in the described horizontal sliding jar chuck heated oil bath cabinet is connected with end entrance under the hot oiling chuck, the upper end outlet of described hot oiling chuck is communicated with deep fat chamber inlet, be provided with oil pump between the end entrance under described deep fat chamber and the hot oiling chuck, connect heating unit in the described horizontal sliding jar chuck heated oil bath cabinet, refrigerating unit and thermopair, described heating unit, refrigerating unit all is connected described controller with the raw material thermopair, shown in the part of refrigerating unit in described horizontal sliding jar chuck heated oil bath cabinet be multi-layer helical shape sealing spiral coil cooling tube, described refrigerating unit connects horizontal sliding jar chuck cooling water tank, on the water pipe between described horizontal sliding jar chuck cooling water tank and the refrigerating unit, be provided with water pump, described refrigerating unit utilizes water pump to connect described multi-layer helical shape sealing spiral coil cooling tube through the water cavity outlet by described horizontal sliding jar chuck cooling water tank water coolant is squeezed into described horizontal sliding jar chuck heated oil bath cabinet internal recycle, and described multi-layer helical shape sealing spiral coil cooling tube links to each other with the water cavity inlet.In described initialization module, determine the working temperature of temperature out, the temperature in of horizontal sliding jar, described horizontal sliding jar chuck heated oil bath cabinet and limit top temperature, described horizontal sliding jar chuck cooling water tank, in the described startup module, start oil pump; Described controller also comprises:
Horizontal sliding jar temperature regulation module is used for turn-offing oil pump when the temperature of exit thermocouple detection reaches temperature out.Horizontal sliding jar chuck heated oil bath cabinet temperature regulation module is used for when described horizontal sliding jar chuck heated oil bath cabinet temperature does not reach working temperature, by controller control AC voltage adjusting module output continually varying voltage signal control heating unit;
Horizontal sliding jar chuck cooling water tank temperature regulation module is used for starting refrigerating unit when the temperature that detects horizontal sliding jar chuck heated oil bath cabinet surpasses the qualification top temperature.
Described continuous preparation system for hydroxy terminated polydimethylsiloxane also comprises warning device, described controller also comprises alarm module, be used for when first frequency transformer, second frequency converter failure, working power are unusual, output alarm signal when water temperature surpasses described horizontal sliding jar chuck cooling water tank alarm temperature, described alarm module connects warning device.
In the present embodiment, based on the hydroxyl polysiloxane serialization production control system of PLC mainly by formations such as PLC (controller), speed control by frequency variation module (frequency transformer, three-phase asynchronous motor, pump), temperature control modules, viscosity measurements module and PCs.Controlled temperature is constant, according to the viscosity value of feedback, determines the flow of monomer and catalyzer, water.The rotating speed of the automatic control pump of frequency conversion speed-adjusting system reaches in the required pump output of the technical process that is constantly changing.
System is mainly by forming with lower unit:
Adopt siemens CPU224-XPCN as controller, finish the collection to all input signals in the system, the control of all output units and external data exchange.
Frequency conversion speed-adjusting system is by frequency transformer, three-phase asynchronous motor, flow pump (mono-pump).According to the control requirement, change pump output in real time and accurately.
Temperature control modules, the temperature of employing thermocouple measurement horizontal sliding jar, horizontal sliding jar chuck heated oil bath cabinet, horizontal sliding jar chuck cooling water tank is isolated the heating of single phase ac regulation module controls horizontal sliding jar chuck heated oil bath cabinet entirely, reaches temperature control requirement.Be used for when the temperature that detects horizontal sliding jar chuck heated oil bath cabinet surpasses the qualification top temperature, starting refrigerating unit.
The viscosity measurement module sends to finished product viscosity among the PLC by serial ports.
Warning device: flash alarm.When frequency converter failure, working power are unusual, output alarm signal when water temperature surpasses described horizontal sliding jar chuck cooling water tank alarm temperature.
PC both can be used as upper computer, can write software again.
Controller: PLC is the core of The whole control system, by collection and the control of program realization to various service datas such as frequency transformer, temperature, viscosity, various operating parameters and guard signal processing etc. in the real-time monitoring system.Adopt siemens CPU224-XPCN (carrying two communication ports, 2 analog quantity inputs, 1 analog output module) as controller.
Operation to mono-pump divides manually and automatic mode.During manual mode, available buttons 1SB1,1SB2,2SB1,2SB2 control the startup of two pumps and stop, by the interface setting frequency values of frequency transformer; When moving automatically, spiral pump moves under the PLC time variable control.
Consider the frequency of two frequency transformers of control, the work output of single-phase voltage regulating module, detect horizontal sliding jar chuck heated oil bath cabinet temperature, horizontal sliding jar chuck cooling water tank water tank temperature, horizontal sliding jar temperature out, horizontal sliding jar temperature in signal, so siemens EM-232 analog quantity expansion module and EM-231 thermopair (EM231-TC) module are selected in totally 4 tunnel analog quantitys input, the output of 3 tunnel analog quantitys for use.EM-232 is with two analog output modules.
Temperature control modules (hereinafter to be referred as temperature control module): the theoretical investigation in early stage shows that temperature of reaction can influence the quality of finished product.In the serialization production process, require (1m) upright heating of 50 liters of fuel tank band plug flow batch reactors of control (i.e. " horizontal sliding jar "), the reactant reaction temperature is provided.With reference to Fig. 3, temperature control module by plug flow (static mixer), horizontal sliding jar chuck heated oil bath cabinet 5, the horizontal sliding jar chuck cooling water tank 6 of band hot oiling chuck, isolate single-phase voltage regulating module 7, oil pump, water pump, rly. and thermopair entirely and form.Oil pump is driven into end entrance under the plug flow chuck with the deep fat in the horizontal sliding jar chuck heated oil bath cabinet 5, flows back in the horizontal sliding jar chuck heated oil bath cabinet 5 from the upper end outlet; The spiral coil cooling tube of horizontal sliding jar chuck heated oil bath cabinet 5 connects water pump, when horizontal sliding jar chuck heated oil bath cabinet 5 needs cooling, starts water pump, water pump is thrown the cold water in the water tank 6 into spiral coil cooling tube, take away the oil temperature through the cold water of spiral coil cooling tube, get back to again in the water tank, play cool effect; The heating of single phase ac regulation module 7 control horizontal sliding jar chuck heated oil bath cabinets 5 heating rods, thermopair detects horizontal sliding jar entry and exit temperature, horizontal sliding jar chuck heated oil bath cabinet 5 temperature, horizontal sliding jar chuck cooling water tank 6 temperature, these simulating signals are delivered among the PLC, determined control voltage regulating module work output by PLC.If when the temperature of water tank 6 reaches horizontal sliding jar chuck cooling water tank alarm temperature (being set at 80 degrees centigrade in this project), warning starts, and the prompting personnel change water.
Because the temperature control scope is at 0 ℃～200 ℃, so select K type thermopair for use.Four thermopairs are set are connected on the EM231 thermopair module, be respectively applied for and measure heating horizontal sliding jar chuck heated oil bath cabinet 5 temperature, horizontal sliding jar chuck cooling water tank 6 temperature, horizontal sliding jar and go out/temperature in.
Adopt the level and smooth heating of isolating single phase ac regulation module controls horizontal sliding jar chuck heated oil bath cabinet 5.
The speed control by frequency variation part is made up of frequency transformer, mono-pump.Regulate the rotating speed of asynchronous machine by frequency transformer, thereby change the rate of discharge of spiral pump.PLC determines the operating frequency of pump according to processing requirement, and output frequency signal is given frequency transformer, thereby the rotating speed of control pump reaches in the required pump output of the technical process that is constantly changing automatically.Pump P1 controls monomeric flow, the flow of pump P2 control water and catalyzer.The viscosity feedback is adopted in speed governing, adopts the frequency of P control the change in proportion first frequency transformer and second frequency transformer, thus according to Fig. 4, changes the output flow of pump P1 and pump P2, thereby reaches the purpose that changes the reaction times.
Spiral pump:, find in the project research that the stator rubber meeting of spiral pump and high temperature monomer play the swelling reaction gradually, so the rotating speed of pump can not be too high, so in software, will do amplitude limiting processing because monomer will be preheating to 90 degrees centigrade.
Frequency transformer: the FR-540 of Mitsubishi.
Frequency transformer can be operated in " PU operator scheme ", " external operation mode ", " combination manipulation mode ", " communication operation pattern ".Present embodiment is selected " external operation mode ", and frequency setting signal is input as 4-20mA.
The viscosity measurement module: apparatus preparation has the RS232 communication port, uses the PC/PPI cable that S7-200CPU is connected with it.
Select free mouthful pattern to control the serial communication interface of S7-200.User program interrupts, sends and interrupt, send instruction and receive the operation that communication port is controlled in instruction by using to receive.
Alarm module and PC: when first frequency converter failure or second frequency converter failure, flash alarm (on the housing panel) action, frequency transformer and motor quit work simultaneously.
PC can be made upper computer, uses configuration software dynamically to show the state of the switching value among the PLC and the numerical value of digital quantity with characters.The generation of picture is visual, does not need user program fully, can also supervise the operational process of system and show, warning is shown.
Claims (3)
1. continuous preparation system for hydroxy terminated polydimethylsiloxane, comprise raw material tank, thermostat container, catalyzer and tank, pre-reaction jar and horizontal sliding jar, described raw material tank connects thermostat container, described thermostat container, catalyzer is connected the pre-reaction jar with tank, described pre-reaction jar connects the horizontal sliding jar, it is characterized in that: described continuous preparation system for hydroxy terminated polydimethylsiloxane also comprises the controller that is used to realize the serialization preparation, between described thermostat container and pre-reaction jar, be provided with the feed screw pump, between described catalyzer and tank and pre-reaction jar, be provided with the catalyzer spiral pump, described feed screw pump connects first drive-motor, described first drive-motor connects first frequency transformer, described catalyzer spiral pump connects second drive-motor, described second drive-motor connects second frequency transformer, and described first frequency transformer is connected described controller with second frequency transformer; In described thermostat container, connect heating unit and raw material thermopair, described heating unit all is connected described thermostat container with the raw material thermopair and carries temperature controller, inlet at described horizontal sliding jar is provided with the inlet thermopair, outlet at described horizontal sliding jar is provided with exit thermocouple, and described inlet thermopair is connected described controller with exit thermocouple; With pipeline that the outlet of described horizontal sliding jar is connected on viscosity measuring instrument is installed, described viscosity measuring instrument connects described controller, described controller comprises:
Initialization module is used for determining the flow of feed screw pump, the flow of catalyzer spiral pump according to processing condition; Start module, be used for after the temperature of raw material thermopair detection reaches working temperature, the start-up control device is determined the first frequency transformer output frequency and the second frequency transformer output frequency according to processing requirement, starts first drive-motor and second drive-motor;
Frequency converter frequency adjusting module: according to the viscosity feedback signal, based on process characteristic, keep adjusting the output frequency of first frequency transformer and second frequency transformer under the output frequency ratio constant condition of first frequency transformer and second frequency transformer, make product viscosity be stabilized in set(ting)value.
2. continuous preparation system for hydroxy terminated polydimethylsiloxane as claimed in claim 1, it is characterized in that: described horizontal sliding jar is provided with the hot oiling chuck, deep fat chamber outlet in the horizontal sliding jar chuck heated oil bath cabinet is connected with end entrance under the hot oiling chuck, the upper end outlet of described hot oiling chuck is communicated with deep fat chamber inlet, be provided with oil pump between the end entrance under described deep fat chamber and the hot oiling chuck, connect heating unit in the described horizontal sliding jar chuck heated oil bath cabinet, refrigerating unit and thermopair, described heating unit, refrigerating unit all is connected described controller with the raw material thermopair, the part of described refrigerating unit in described horizontal sliding jar chuck heated oil bath cabinet is multi-layer helical shape sealing spiral coil cooling tube, described refrigerating unit connects horizontal sliding jar chuck cooling water tank, on the water pipe between described horizontal sliding jar chuck cooling water tank and the refrigerating unit, be provided with water pump, in described initialization module, determine the temperature out of horizontal sliding jar, temperature in, the working temperature of described horizontal sliding jar chuck heated oil bath cabinet and qualification top temperature, described horizontal sliding jar chuck cooling water tank alarm temperature, described startup module is in order to start oil pump; Described controller also comprises: horizontal sliding jar temperature regulation module is used for turn-offing oil pump when the temperature of exit thermocouple detection reaches temperature out; Horizontal sliding jar chuck heated oil bath cabinet temperature regulation module is used for when described horizontal sliding jar chuck heated oil bath cabinet temperature does not reach working temperature, by controller control AC voltage adjusting module output continually varying voltage signal control heating unit;
Horizontal sliding jar chuck cooling water tank temperature regulation module: be used for when the temperature that detects horizontal sliding jar chuck heated oil bath cabinet surpasses the qualification top temperature, starting refrigerating unit.
3. continuous preparation system for hydroxy terminated polydimethylsiloxane as claimed in claim 1 or 2, it is characterized in that: described continuous preparation system for hydroxy terminated polydimethylsiloxane also comprises warning device, described controller also comprises alarm module, be used for when first frequency transformer, second frequency converter failure, working power are unusual, output alarm signal when water temperature surpasses described horizontal sliding jar chuck cooling water tank alarm temperature, described alarm module connects warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100632932A CN101333293B (en) | 2008-07-30 | 2008-07-30 | Continuous preparation system for hydroxy terminated polydimethylsiloxane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100632932A CN101333293B (en) | 2008-07-30 | 2008-07-30 | Continuous preparation system for hydroxy terminated polydimethylsiloxane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101333293A CN101333293A (en) | 2008-12-31 |
| CN101333293B true CN101333293B (en) | 2011-06-29 |
Family
ID=40196191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100632932A Expired - Fee Related CN101333293B (en) | 2008-07-30 | 2008-07-30 | Continuous preparation system for hydroxy terminated polydimethylsiloxane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101333293B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503840A (en) * | 2018-10-31 | 2019-03-22 | 东莞市锕舒尔智能科技有限公司 | A kind of full-automatic continuous production line of 107 silicon rubber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250290A (en) * | 1979-06-18 | 1981-02-10 | General Electric Company | Process for the continuous manufacture of siloxane polymers |
| CN1056502A (en) * | 1990-05-15 | 1991-11-27 | 化学工业部晨光化工研究院一分院 | α, the preparation of ω-two-hydroxyl oxygen dimethyl silicone pdms |
| CN1232048A (en) * | 1998-04-01 | 1999-10-20 | 韦特科公司 | Method for continuous manufacture of silicone copolymers |
| EP1006139A1 (en) * | 1998-12-02 | 2000-06-07 | Shin-Etsu Chemical Co., Ltd. | Preparation of organopolysiloxane gum |
| CN1259535A (en) * | 1998-08-26 | 2000-07-12 | 陶氏康宁公司 | Continuous process for producing organosilicon polymer |
| CN201071304Y (en) * | 2007-06-28 | 2008-06-11 | 贵阳铝镁设计研究院 | Over face frame hanging of carbon roasting oven |
-
2008
- 2008-07-30 CN CN2008100632932A patent/CN101333293B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250290A (en) * | 1979-06-18 | 1981-02-10 | General Electric Company | Process for the continuous manufacture of siloxane polymers |
| CN1056502A (en) * | 1990-05-15 | 1991-11-27 | 化学工业部晨光化工研究院一分院 | α, the preparation of ω-two-hydroxyl oxygen dimethyl silicone pdms |
| CN1232048A (en) * | 1998-04-01 | 1999-10-20 | 韦特科公司 | Method for continuous manufacture of silicone copolymers |
| CN1259535A (en) * | 1998-08-26 | 2000-07-12 | 陶氏康宁公司 | Continuous process for producing organosilicon polymer |
| EP1006139A1 (en) * | 1998-12-02 | 2000-06-07 | Shin-Etsu Chemical Co., Ltd. | Preparation of organopolysiloxane gum |
| CN201071304Y (en) * | 2007-06-28 | 2008-06-11 | 贵阳铝镁设计研究院 | Over face frame hanging of carbon roasting oven |
Non-Patent Citations (2)
| Title |
|---|
| 周安安,翁志学,单国荣等.有水条件下羟基聚硅氧烷一步合成的反应动力学模型.《化工学报》.2004,第55卷(第1期), * |
| 梁志超,詹学贵,单国荣等.硅氧烷的水解-缩聚反应动力学.《高分子通报》.2006,(第11期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101333293A (en) | 2008-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101693175B (en) | Bi-component rubber-mixing machine and closed-loop control method for rubber mixing thereof | |
| CN100402623C (en) | Automatic continuous producing device system and method for seal glue | |
| CN100524140C (en) | Polymer polymerization reaction temperature control method and device thereof | |
| CN201436030U (en) | Glue solution mixing and control system of glue groove for producing hollow hard capsule | |
| CN110408029A (en) | A kind of devices and methods therefor of serialization efficient green production dimethicone | |
| CN101333293B (en) | Continuous preparation system for hydroxy terminated polydimethylsiloxane | |
| CN101739000A (en) | Intelligent control system of asphalt foaming device | |
| CN102631878A (en) | Intelligent reaction kettle | |
| CN204509206U (en) | A kind of movable type emulsified asphalt production unit | |
| CN201148408Y (en) | Multi-kettle continuous production apparatus for waterborne polyurethane polymerization reaction | |
| CN208465735U (en) | A kind of hot type lubricating oil agitator tank | |
| CN212119974U (en) | Rubber asphalt, SBS modified asphalt and modified emulsified asphalt integral type processing equipment | |
| CN1868575A (en) | Method and equipment for constant temp. chemical reaction | |
| CN207929172U (en) | The Petropols continuous polymerization device of micro quantitative determination control | |
| CN106750072B (en) | A kind of continuous production device and method of amino resins | |
| CN1772361A (en) | Mixing machine | |
| CN111533914B (en) | Continuous production process of polymethyltriethoxysilane in pipeline mode | |
| CN202336340U (en) | Polyreactor for preparing solvent-free wire enamel | |
| CN211111819U (en) | Polycarbonate raw materials for production preliminary treatment system | |
| CN201892649U (en) | Constant rotation moment Giseeler fluidity test system for coal | |
| CN101735428B (en) | Preparation method of epoxy resin system used for blades of wind driven generator | |
| CN203079853U (en) | Naphthalene water reducer producing device | |
| CN215822820U (en) | Three-temperature ink generating stirrer | |
| CN103122069B (en) | Telomerization-free method and device for continuously preparing polysiloxane from cyclosiloxane | |
| CN208898806U (en) | Equipment of producing modified asphalt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20120730 |